The buzz: Burnside Brooklyn, a bar with a relaxed vibe that just opened in Williamsburg, serves Midwestern beers on tap and unfussy pre-Prohibition-style cocktails. The best one out of the lot, with the most girlish name, pairs applejack and champagne, a combination that's usually too sweet. But in the Sparkling Rose, these ingredients are spiked with a good amount of lemon juice and a slightly sour house grenadine, making a straightforward drink that still fits the bill.